Swinging shelf for desks.



J.. F. COLLINS.

SWINGING SHELF FOB. DESKS.

APPLIOATIOH FILED MAR. 16, 1910.

Patented Jan. 17, 1911.

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. ings, wherein 5-5, Fig. 3. Fig. 6 is a perspective view of in a horizontal position to one side of a siding at Washington, in the District of Co- 7 be swung to a position where the user may -stationary member of the bracket.

UNITED srATEs JAMES r. counts, or WASHINGTON, mfsrmc'r or COLUMBIA.

swmems SHELF ron DEsKs.

Application filed March 16,

' Specification of Letters Patent.

Patented Jan. 17, 1911.

1910. Serial No. 549,770.

To all whom itmay concern: 7 I

Be it known that I, JAMES F. COLLINS, a citizen of the United States of America, re-

lumbia, have invented certain new and useful Improvements in Swinging Shelves for Desks,-&c., of which the following is a specification, reference being had therein to the accompanying drawing. I

This invention relates-to brackets especially adapted for use in connection with supporting rods of swinging shelves, and the principal object of the same is .topro: vide a bracket that may be fastened to a corner portion of a desk, table 'or other articles of furniture to support a swinging shelf so that the latter may be swung to both sides of "the corner to which it is connected. The invention is particularly adapted for use in connection withshelt'es for typewriters, and prot'ides means whereby. a typewriter shelf may be pivotally connected to one corner of a desk so that the same may operate the typewriter without leaving the desk, and when not in use, the shelf may be swung to one side of the desk so that'it will not interfere with the customary use of the desk.

- In carrying out the objects of the invention generallystated above it will be understood, of course, that the essential features thereof are necessarily susceptible of changes in details and structural arrangements, one preferred and practical embodiment of which is shown in the accompanying draw- Figure 1 is a perspective view of a table desk showing a shelf pivotally connected thereto by theimproved brackets. Fig. 2 is a fragmentary horizontal sectional view thereof dotted lines being used to indicate an adj usted positionof the bracket. Fig. 3 is a perspective View of the improved bracket. Fig. 4 is a similar view of the Fig. 5 is a vertical sectional view taken on the line a modified stationary member;

' Referring to said accompanyingdrawings by numerals, it willbe seen that the improved bracket comprises a fiat plate '1 which is provided with openings 2 forthe reception of fasteners, such as screws 3, by means of which the bracket may be fastened corner of a desk 4. At one end, said plate is provided with a flat pivot ear 5 which is arrangedlat right angles to said plate and.

having its free end projecting well beyond the said plate and provided with an opening 6 that is preferably rectangular. The movable member of the bracket comprises a fiat plate 7 having a pivot opening 8 in one end, and at itsotherend provided with a socket 9 through which an opening 10' is formed. Said socket projects at right anrotation of said bo t relative to said ear is prevented. The shank 1 3 fits loosely within the end opening of plate7 so. that pivotal movement of said plate is permitted. A.

washer. 14 is interposed between the head of the pivot bolt and ear 5, and a lock nut 15 and interposed washer 16 are carried by the threaded shank of said bolt for holding the stationary member and the movable member of the bracket inpivotal relation.

In use, as is suggested in Fig. 1, two of the improved brackets are employed for supporting a shelf, one being at the upper portion and the other at the lower ortion of a desk,'- and the sockets '9 of said' rackets receive the ends of a shelf post-17. Said post carries a lower-adjustable collar 18 from which arms 19 project which are suitably fastened to-a shelf 20. 'Said shelf is connected at one corner to a collar 21 also adjustably mounted on post 17. It is presocket opening of the lower bracket in rec tangular shape, which obviously facilitates ferred to form the socket opening of the Q upper bracket in cylindrical shape, and the the positioning or removal of post 17. A set screw 22 is carried by the socket of the lower bracket for locking the post 17 to said socket.

It will be seen from the foregoing that l the im roved brackets. permit the shelf to be rea ily-swung around the corner of a desk so that the occupant thereof will have access to said shelf, as is shown in full lines in Fig. 1, and when-access to the shelf is not desired, the same may be swung to the dot- ,ted line position indicated in said figure so that it will not interfere with the use of the desk. It will also be understood, that the plate and pivot ear of the stationary mem-' bers are preferably integral, and the plate and socket of the movable members are also preferably integral, and may be cast thus providing a bracket which may be manu.

factured at the minimum of cost and without requiring skilled labor. a In the modified form of the invention shown in Fig, 6, the plate 23 of the movable member is adapted to be placed in a vertical position on a desk and the pivot ear 24 thereof projects at right angles from the longitudinal center thereof. Said plate and ear are preferably integral.

gagement with one of the horizontal-faces of with an enlarged, depending) the ear and provided with a round aperture registerin' withthe s uare aperture,,.'a fastening-memer provide with a square portion, the square member provided with a round portion swinging-plate, means on said fastening member for retaining the swingingm e1n- 'ber in engagement with the ear, permlt-t ng the same to swing in a horizontal plane, said swinging-memberprovided at its outer end tion, said hub-like port-ion eing provided ortion seated in the square aperture of t e ear, said fasteningpositioned in the round aperture of. the

hub-like orwith a square post or standard-receiving opening or socket, and clamping means ex-.

tending into the square socket and carried bythe hub-like portion, substantially as shown j and described.

In testimony whereof I hereunto aflix my signature in presence of two witnesses.

JAMES F COLLINS.

Witnesses: I

Ross J. Woonwmm, EDWARD L. MUELLER. 

